Glue

It's Super! It's Krazy! And it can be found in everything from carpet to computers, books to boats, shoes to the Space Shuttle. It's even used in surgery! Without it, our material world would simply fall apart. In this episode, we'll visit the stuck-up, tacky world of glue. Glue's sticky trajectory spans human history and we'll cover it all--from Neolithic cave dwellers who used animal glue to decorate ceremonial skulls to modern everyday glues and their uses, including Elmer's glue, 3M's masking and Scotch tape, and the super glues. Remember the Krazy Glue commercial in which a man held himself suspended from a hard hat that had just been glued to a beam? Well, that 1970s vintage ad understates the power of glue. With the help of a crane, we're going to hoist a 6,000-pound pickup truck off the ground by a steel joint that's been bonded with glue!